Collapsable text in tickets

I would like to propose a feature that would significantly improve readability within ticket comments and internal notes.

In many support cases we end up with very long email threads due to ongoing troubleshooting and back-and-forth communication with customers. For example, we recently had a VoIP troubleshooting case where we could not access the customer’s router directly and had to guide them through multiple tests. The resulting ticket thread grew to over 40 pages due to the accumulated email history.

It would be extremely helpful if ticket comments supported collapsible sections so long blocks of content such as email history could be hidden by default and expanded only when needed.

I attempted to implement this using standard HTML collapsible elements:

However, it appears that when the comment is saved and later edited, these tags are removed. This suggests the editor sanitizes or strips these elements.

My questions are:

1. Is there a security concern that prevents the use of the <details> and <summary> HTML elements?

2. If not, would it be possible to allow these tags in the Froala? editor used for ticket comments?

3. Alternatively, could Splynx implement a built-in collapsible or accordion-style section feature within ticket comments or notes?

If this is sort of method is already supported but I am not properly implementing it please someone let me know.

This would greatly improve ticket readability for long troubleshooting cases while still preserving the full history when needed.

Thank you.